Number | Name | Date | Kind |
---|---|---|---|
4836947 | Shankland et al. | Jun 1989 | |
4842764 | Shankland et al. | Jun 1989 | |
4960535 | Logsdon et al. | Oct 1990 | |
4996242 | Lin | Feb 1991 | |
5024781 | Logsdon et al. | Jun 1991 |
Number | Date | Country |
---|---|---|
325265 | Jul 1989 | EPX |
1132814 | May 1989 | JPX |
1139780 | Jun 1989 | JPX |
Entry |
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Application Ser. No. 361,512, to E. A. E. Lund et al., filed 6/5/89, a continuation of Ser. No. 204,340 filed 6/9/88. |
Application Ser. No. 189,932, to E. A. E. Lund et al., filed May 3, 1988. |